Read a complete message.
template< class DynamicBuffer> std::size_t read( DynamicBuffer& buffer, error_code& ec);
This function is used to read a complete message. The call blocks until one of the following is true:
The algorithm, known as a composed operation, is
implemented in terms of calls to the next layer's
Received message data is appended to the buffer. The functions
got_text may be used to query
the stream and determine the type of the last received message. Until
the call returns, the implementation will read incoming control frames
and handle them automatically as follows:
The number of message payload bytes appended to the buffer.
A dynamic buffer to append message data to.
Set to indicate what error occurred, if any.